オクダ　ケイ   OKUDA Kei   奥田　圭    所属   広島修道大学  人間環境学部    職種   教授
言語種別	英語
発行・発表の年月	2026/06
形態種別	学術論文
査読	査読有り
標題	Mating attempts and sustained interest behaviors of wild boars (Sus scrofa) toward a dead conspecific
執筆形態	共著
掲載誌名	Ecology and Evolution
掲載区分	国外
巻・号・頁	16(6),pp.e73848
著者・共著者	◎Akino Inagaki, Kei Okuda, Maximilian L. Allen, Shinsuke Koike
概要	Animal responses to dead conspecifics remain poorly understood. We used camera traps to record three wild boars (Sus scrofa) visiting the carcass of an adult female conspecific during decomposition in Nikko City, Japan. An adult male mounted the carcass and continued to show non-feeding interest for approximately 17 days, including stepping on and resting near it. No individuals consumed soft tissues. These observations provide rare evidence of necrophilic behavior in a terrestrial mammal and suggest that carcass monitoring can reveal behavioral responses beyond carrion feeding.